As events highlight deep divisions in attitudes between America and Europe, this is a very timely study of different approaches to the problems of domestic inequality and poverty. Based on careful and systematic analysis of national data, the authors describe just how much the two continents...

220 million Americans crowd together in the 3% of the country that is urban. 35 million people live in the vast metropolis of Tokyo, the most productive urban area in the world. The central city of Mumbai alone has 12 million people, and Shanghai almost as many. We choose to live cheek by jowl,...